八面台油田单井产能控制因素研究

Analysis on Controlling Factor of Indiv idua-lW ell
Productivity in BamiantaiO ilfield

何贤科

H e X ianke

中国地质大学, 北京100083

( China University of Geosciences, Beij ing
100083, China).

八面台油田 产能 断层 沉积微相 储层物性

M athema tica l statistics study show s that o i-lw ell
productiv ity o f B am ianta i o ilfie ld is contro lled by fau lt,
sedim en tary m icro- fac ieses and reservo ir properties. A s fo r
structura l hydro carbon reservoir, the o il w ell on up- throw n
b lock has higher da ily o il production, low er w ate r cut and
better developm ent perform ance com pared w ith the o ilw ell on
dow n- thrown b lock in b lock fau lted o ilfie ld. Besides, the
d istance from produce r to fau lt has an im po rtant e ffect on w ell
productiv ity, h igh capacity we ll m a inly lies w ith in 50100m to
the fau lt. The furthe r the o il w ell off to the fault, the low er
productiv ity is obtained. In addition, it show s tha t the o il w ell
allcoated on channe l sand has h ighest da ily o il production,
lowest wa ter cut and best developm ent per fo rm ance, w hile oil
w e ll a llocated on de lta front sand has low est da ily output,
h ighest w ater cut and w orst development perform ance. A lso,
the reservo ir prope rty o f h igh capac ity w ell such as net thick,
porosity, perm eab ility and satura tion is presented by sta tistica l
m ethod. The study results have im po rtan t realistic m eanings
and re ference value in the nex t-sep w e ll pattern ad justm ent o r
m od ifica tion o f the low perm eability reservo ir.